CN219123750U - Electrolytic rectification control cabinet - Google Patents
Electrolytic rectification control cabinet Download PDFInfo
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- CN219123750U CN219123750U CN202320066660.4U CN202320066660U CN219123750U CN 219123750 U CN219123750 U CN 219123750U CN 202320066660 U CN202320066660 U CN 202320066660U CN 219123750 U CN219123750 U CN 219123750U
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Abstract
The utility model relates to an electrolytic rectification control cabinet, which comprises a control cabinet body, a cabinet front panel, a relay mounting plate and an inner end of the cabinet, wherein the relay mounting plate comprises: the device comprises a synchronous transformer, an isolation transmitter, a two-phase miniature circuit breaker A, a two-phase miniature circuit breaker B, a three-phase circuit breaker, a fuse, a relay protection loop, a cabinet front terminal, a switch, a PLC, a digital control board and a relay control loop, wherein a relay mounting plate is arranged on a beam at the inner side of a control cabinet body; the left side and the right side of the cabinet body of the control cabinet, which are behind the relay mounting plate, are provided with cabinet terminals; the utility model has compact structure, small occupied space, reasonable layout, modularized design and simple maintenance and replacement. The method is applied to the production sites of high current and high voltage such as electrolytic aluminum, chemical industry, color, carbon and the like, can realize real-time monitoring and protection of the running state of the rectifier, ensures the safe running of the rectifier, adjusts the high current according to the requirements of the production process, and ensures the production and running of the industrial site.
Description
Technical Field
The utility model relates to a control cabinet, in particular to an electrolytic rectification control cabinet.
Background
The high-power rectifier is a device for converting alternating current into direct current and is widely applied to high-current and high-voltage production sites such as electrolytic aluminum, electrolytic copper, electrolytic zinc, chemical industry, carbon and the like. The on-site rectifying device is mainly used for supplying power to the electrolytic tank, and the current required by the electrolytic production load is thousands of amperes and tens of thousands of amperes. The rectifier is the core device of a factory. If the rectifier fails due to protection loss or control failure, power failure or unstable current will cause significant economic loss to field production. It is particularly important for protecting and controlling the rectifying device.
The old control cabinet power supply of many manufacturers is not isolated from the source, and the core device is easy to damage in the case of sudden impact. The simulation control of the small integrated circuit board is used, the adjusting range is small, and the steady flow effect is poor. Most of communication interfaces are customized, have poor universality and cannot be used for quickly and effectively communicating with other external equipment to perform data interaction. The system has the advantages that a visual monitoring interface is not provided, when the rectifier fails, no clear indication exists, the system and load operation condition monitoring capability is not provided, when the fault is about to occur, fault information cannot be fed back timely, on-site personnel cannot be guided to prevent the fault from occurring, after the fault occurs, clear indication cannot be given to the source of the fault, and inconvenience is brought to maintenance.
Disclosure of Invention
The utility model aims to provide an electrolytic rectification control cabinet. All signals related to the rectifier site are transmitted into a control cabinet in the form of electric signals, and the control cabinet is transmitted into the PLC after being isolated and protected to be subjected to centralized processing data, so that system control protection is generated, and safe operation of rectifier core components is ensured. The problems of information loss, poor cooperative control and the like existing in the mutual cooperation of equipment in the rectifier are reduced.
The technical scheme of the utility model is as follows: the utility model provides an electrolytic rectification switch board, includes switch board cabinet body, cabinet front panel, relay mounting panel, cabinet internal terminal, and the cabinet front panel includes: the device comprises an instrument, an alarm buzzer, an indicator light, a touch screen and buttons; the relay mounting plate includes: the device comprises a synchronous transformer, an isolation transmitter, a two-phase miniature circuit breaker A, a two-phase miniature circuit breaker B, a three-phase circuit breaker, a fuse, a relay protection loop, a cabinet front terminal, a switch, a 24V power module, a PLC, a digital control board and a relay control loop, wherein a relay mounting plate is arranged on a beam at the inner side of a control cabinet body; the left side and the right side of the cabinet body of the control cabinet, which are behind the relay mounting plate, are provided with cabinet terminals;
the AC110V synchronous power supply of the control cabinet is provided by a high-voltage transformer. AC220V power is provided by a power transformer in the field. All signals are provided by rectifiers.
The high-voltage transformer connects an AC110V synchronous power supply to the internal terminal of the cabinet, the internal terminal of the cabinet is connected with a synchronous transformer, the synchronous transformer is connected with a three-phase circuit breaker, and the three-phase circuit breaker is connected with a digital control board. The synchronous signals are provided to the digital control board after being isolated and protected by the synchronous transformer and the three-phase circuit breaker.
The power transformer is connected with an AC220V power supply into a cabinet inner terminal, the cabinet inner terminal is connected with an isolation transformer, the isolation transformer is connected with a two-phase miniature circuit breaker A, the two-phase miniature circuit breaker A is connected with a fuse, and the fuse is respectively connected with an isolation transmitter, a relay protection loop, a socket, a relay control loop and an instrument.
The power transformer is connected with an AC220V power supply into a cabinet inner terminal, the cabinet inner terminal is connected with an isolation transformer, the isolation transformer is connected with a two-phase miniature circuit breaker B, the two-phase miniature circuit breaker B is connected with a fuse, the fuse is connected with a 24V power module, the 24V power module is connected with a cabinet front terminal, and the cabinet front terminal is respectively connected with an alarm buzzer, an indicator lamp, a button, a touch screen, a switch, a PLC and a digital control board.
The rectifier is connected with all analog signals of the rectifier into the terminal in the cabinet, the terminal in the cabinet is connected with the isolation transmitter, the isolation transmitter is respectively connected with the instrument and the PLC, and the isolation transmitter transmits the analog signals which are protected by isolation to the instrument and the PLC.
The rectifier is connected with all switching value signals of the rectifier into the cabinet internal terminal, the cabinet internal terminal is connected with the relay protection circuit, the relay protection circuit is connected with the PLC, and the relay protection circuit transmits the isolated switching value signals to the PLC.
The PLC and the digital control board are connected; the PLC controls the digital control board to output trigger pulse to adjust the output current of the rectifier. The PLC is connected with the switch; the switch is connected with the touch screen; the touch screen is used for carrying out centralized monitoring on the control cabinet. The PLC is connected with the relay control loop, the relay control loop is connected with the alarm buzzer and the indicator lamp, and fault alarm and signal indication are output. The PLC is connected with the relay control loop, the relay control loop is connected with the button, and the button is used for controlling the PLC when the touch screen fails.
The relay mounting plate is divided into four layers, and a first layer is provided with a synchronous transformer, an isolation transformer and an isolation transmitter; the second layer is provided with a two-phase miniature circuit breaker A, a two-phase miniature circuit breaker B, a three-phase circuit breaker, a fuse, a relay protection loop and a cabinet front terminal; the third layer is provided with a switch, a 24V power module, a PLC and a socket; the fourth layer is provided with a digital control board and a relay control loop.
The cabinet body is front side outward opening door, and the back door is the side by side door, and preceding, back door and side door board are equipped with the strengthening rib, and the upper and lower side of cupboard back door is equipped with ventilation hole and dust screen, and the side respectively is equipped with 2 detachable crossbeams about in the cabinet, and the cabinet top is equipped with 4 rings, and the bottom apron is three sections detachable bottom plates, and the cabinet bottom adopts detachable segmentation bottom plate, and cabinet bottom crossbeam also can dismantle, and the cabinet body top is equipped with the cooperation of integral white light LED lamp and has travel switch.
The PLC is connected and communicated with the digital control board through a CAN bus or 485 connection communication mode;
the PLC transmits the data to the exchanger in an Ethernet communication mode;
the touch screen communicates with the PLC Ethernet through the switch.
According to the utility model, firstly, an introduced power supply and an input signal are subjected to isolation protection of a synchronous transformer, an isolation transmitter, a power supply protection loop and a relay protection loop before being connected into equipment, so that the safe operation of a core device is ensured. The digital control board is used for triggering control, so that the current stabilizing effect is good, the current adjustable range is deep, and the rectifying efficiency is high. And the PLC is used for centralized processing of data to generate system protection, so that safe operation of the core components of the rectifier is ensured. The touch screen is used for visual monitoring, the integration level is high, and the operation is simple, visual and convenient. Ethernet and CAN bus communication interfaces are reserved in the cabinet, so that the intelligent cabinet temperature control system is high in universality, simple in communication, convenient for an upper computer to carry out networking centralized control on a plurality of control cabinets and communicate with other external equipment, high in expansibility and high in automation degree.
The utility model is also provided with the cabinet front panel, and can complete basic protection and monitoring by manually operating the buttons, the monitoring instrument and the indicator lamp when the touch screen breaks down suddenly, thereby ensuring the normal requirement of production. The double insurance of software and hardware is realized, and the smooth production is ensured not to be affected under emergency conditions.
The utility model has compact structure, small occupied space, reasonable layout, modularized design and simple maintenance and replacement. The method is applied to the production sites of high current and high voltage such as electrolytic aluminum, chemical industry, color, carbon and the like, can realize real-time monitoring and protection of the running state of the rectifier, ensures the safe running of the rectifier, adjusts the high current according to the requirements of the production process, and ensures the production and running of the industrial site.
Drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a rear view of the present utility model.
Fig. 3 is a side view of the present utility model.
Fig. 4 is a side view of the utility model.
Fig. 5 is a relay mounting plate layout.
Fig. 6 is a block diagram of the power supply principle of the utility model.
Fig. 7 is a schematic block diagram of signals of the present utility model.
Detailed Description
An electrolytic rectification control cabinet comprises a control cabinet body 1, a cabinet front panel, a relay mounting plate 21 and an inner end 19 in the cabinet, wherein the cabinet front panel comprises: 3-5 parts of instruments, 6 parts of alarm buzzers, 7-8 parts of indicator lamps, 9 parts of touch screens and 10-16 parts of buttons; the relay mounting plate 21 includes: the synchronous transformer 24, the isolation transformer 25, the isolation transmitter 26, the two-phase miniature circuit breaker A27, the two-phase miniature circuit breaker B28, the three-phase circuit breaker 29, the fuse 30, the relay protection circuit 31, the cabinet front terminal 32, the switch 33, the 24V power module 34, the PLC35, the digital control board 37 and the relay control circuit 38, and a relay mounting plate 21 is arranged on a beam on the inner side of the control cabinet body 1; the left side and the right side of the control cabinet body 1 behind the relay mounting plate 21 are provided with cabinet inner ends 19;
the appearance and assembly of the control cabinet are shown in fig. 1:
Cabinet top hanging ring 2: 4 hanging rings are assembled on the cabinet top, and the weight of the hanging rings is not less than 600KG, so that the cabinet can be conveniently lifted in a moving way.
The dc voltmeter 4 displays a dc voltage value.
Gear display table 5, display the rectifier transformer gear.
Alarm buzzer 6: and when the fault alarms, an alarm sound prompt is sent.
The pulse blocking indicator lamp 7 displays the trigger pulse state of the control cabinet.
And a fault indicator lamp 8 which lights up when the equipment has a fault.
Touch panel 9: and (5) intensively monitoring all signals of the control cabinet.
The upshift button 10 raises the transformer gear.
The down shift button 11 lowers the transformer gear.
A boost button 12 boosts the rectifier dc current.
The down current button 13 lowers the rectifier dc current.
A pulse reset button 15, which opens the control cabinet trigger pulse.
The emergency stop mushroom knob 16 is directly pressed to cut off the high voltage circuit breaker protective device when a major fault occurs.
The stainless steel label 17 marks the product model, the manufacturer, the current-voltage parameters, etc.
In fig. 1: the front panel of the cabinet is composed of the instruments 3, 4 and 5, the alarm buzzer 6, the indicator lamps 7 and 8, the touch screen 9 and the buttons 10-16, and when the touch screen 9 breaks down suddenly, basic protection and monitoring can be finished by manually operating the buttons and monitoring the instruments and the indicator lamps, so that the normal requirement of production can be ensured. All cabinet front panel display and operation can be completed on the touch screen 9.
As shown in fig. 2:
the rear door plate adopts a cold-rolled steel plate with the thickness of 1.5mm, and the structural form of the rear door is as follows: and (5) opening the door in opposite directions. The front/back door and the side door plate are required to be treated by reinforcing ribs, the side door plate adopts a cold-rolled steel plate with the thickness of 1.5mm, and the structural form is as follows: the fixed door can be disassembled. The whole frame of the cabinet body adopts a 2mm cold-rolled steel plate, grounding screws are installed at the cabinet door plate, paint is not sprayed at the grounding part, the front and rear door locks are black door locks, the external reference dimension is 255 x 38 (convex), the middle of the bottom of the rear side of the cabinet is welded with a grounding copper bar, the dimension specification is 250 x 25 x 4, and 10M 5 grounding screws are uniformly distributed; the ventilation design is made to the upper and lower side of back door open wind hole and add the dust screen, makes things convenient for the switch board heat dissipation, and the file bag is welded to the suitable position of back door, places the corresponding drawing of switch board, looks over when conveniently overhauling.
As shown in fig. 3:
the side cross beam (upper) 22 is provided with a fixed wire inlet groove 18, an inner end 19 in the cabinet, a wire outlet groove 20 and a relay mounting plate 21.
The side cross beam (lower) 23 is provided with a fixed wire inlet groove 18, an inner end 19 in the cabinet, a wire outlet groove 20 and a relay mounting plate 21.
The cabinet body 1 is internally provided with side cross beams 22 and 23 (detachable), and 1 cross beam is arranged on the left side and the right side; the effective mounting width of the symmetrical welding is not less than 700mm, the net mounting distance between the left and right mounting side beams is ensured to be 800mm, and the relay mounting plate 21 can be mounted on the side cross beam.
Dimensional tolerances are not filled in the drawing, the tolerance level is that the door lintel is configured according to the IT14 grade cabinet, and the height of the door lintel is shown in figure 1: lintel base color, RAL5017 print color: the font of the white entity word "XI' AN PERI" is: ARIAL, and the rest fonts are isosteres. The fonts are as large as possible and are matched to the size of the lintel.
The cabinet body frame bearing is not less than 500KG, 4 rings 2 are assembled on the cabinet top, and the weight of the lifting rings is not less than 600KG, thereby facilitating the movable lifting of the cabinet. The bottom cover plate is a three-section detachable bottom plate, the cabinet bottom is assembled with 25 x 250 x 4 and 10M 5 threaded holes uniformly distributed, screws are assembled, and the surface is protected by grease; the bottom of the cabinet adopts a detachable sectional bottom plate; the cabinet bottom cross beam is also detachable.
The top of the cabinet body is provided with an internal top fitting (8W) T8 integrated white light LED lamp matched with a travel switch, and the lamp is turned on when the cabinet door is opened and turned off when the cabinet door is closed. The lighting device is convenient to debug and overhaul.
As shown in fig. 4:
the incoming slot 18 from which external power and signal cables are fed into the cabinet inner terminal 19.
In-cabinet end 19: and docking the external power supply, the external signal and the internal signal. (one set of terminals on each of the left and right sides)
Wire outlet slot 20: signals are led out from the terminals to the relay mounting plate 21.
Relay mounting plate 21: the relay mounting plates 21 are 910 x 1050 in size and are mounted on the side cross members 22, 23.
As shown in fig. 5:
relay mounting plate 21: the relay mounting plates 21 are 910 x 1050 in size and are mounted on the side cross members 22, 23.
Synchronous transformer 24: the AC110V synchronous signal is used for isolating the AC110V synchronous signal transmitted by the high-voltage transformer and preventing the high-voltage side from being impacted to damage devices in the cabinet.
Isolation transformer 25: the AC220V power supply is used for isolating AC220V power introduced by a user and preventing external impact from damaging devices in the cabinet.
Isolation transmitter 26: the device is used for isolating all external analog signals and preventing the analog module from being damaged by impact.
Two-phase miniature circuit breaker a27: the power supply of the isolation transmitter 26, the relay protection loop 31, the socket 36 and the relay control loop 38 is controlled.
Two-phase miniature circuit breaker B28: control 24V power module 34, control PLC35, digital control board 37, touch screen 9, power supply of switch 33.
Three-phase circuit breaker 29: the digital control board 37 is controlled for three-phase synchronization signals.
Fuse 30: the fuse can be fused when the current exceeds the protection value, so that the device is protected.
Relay protection circuit 31: all active signals are isolated and output as passive signals and then are connected to the PLC35, all tripping signals are connected to the relay protection loop from the source, and when major faults occur, the relay protection loop can directly trip to cut off high-voltage power supply, so that rectifying equipment is protected. The relay protection loop is an independent tripping loop and is parallel to the PLC35 tripping loop to form a tripping protection double insurance.
Front cabinet terminal 32: the terminal is only connected with a low-voltage 24V power supply to supply power to DC24V equipment, firstly, the terminal is close to the DC24V power supply equipment control PLC35, the digital control board 37, the touch screen 9 and the switch 33 to facilitate wiring, and secondly, the direct current terminal and the alternating current terminal (the terminal 19 in the cabinet) are separated, so that the equipment is prevented from being damaged by the error of the connection of the alternating current and direct current power supply.
Switch 33: the data of the PLC35 is transmitted to other equipment, and an Ethernet port and an optical fiber interface are reserved, so that the data transmission with the other equipment is facilitated.
24V power module 34: the AC220V power supply is converted to DC24V power supply to power the corresponding device.
PLC35: the data is centrally processed, current controlled, system protection is generated, and signals are passed into the switch 33.
Socket 36: and equipment such as a notebook, an oscillograph and the like is conveniently debugged, and is powered on.
Digital control board 37: and (5) performing steady flow control, sending out trigger pulse, and controlling the current of the rectifier.
Relay control circuit 38: all input and output instructions are isolated by a relay control loop and then a non-source point signal is sent out, so that equipment is prevented from being damaged.
The relay mounting plate 21 is divided into four layers and is mounted on a beam on the inner side of the control cabinet, and the first layer is provided with a synchronous transformer 24, an isolation transformer 25 and an isolation transmitter 26; the second layer is provided with a two-phase miniature circuit breaker A27, a two-phase miniature circuit breaker B28, a three-phase circuit breaker 29, a fuse 30, a relay protection loop 31 and a cabinet front terminal 32; the third layer is provided with a switch 33, a 24V power module 34, a PLC35 and a socket 36; the fourth layer is provided with a digital control board 37, a relay control loop 38.
The synchronous transformer 24 and the isolation transformer 25 form a power supply isolation loop, and isolate an AC110V synchronous power supply transmitted by the high-voltage transformer and an AC220V power supply provided by the power transformer, so that the devices in the cabinet are prevented from being damaged by external impact.
The two-phase miniature circuit breaker A27, the two-phase miniature circuit breaker B28, the three-phase circuit breaker 29 and the fuse 30 form a power supply protection loop to control and protect the power supply of the control cabinet.
As shown in fig. 6 and 7
The AC110V synchronous power supply of the control cabinet is provided by a high-voltage transformer, the AC220V power supply is provided by a power transformer on site, and all signals are provided by a rectifier;
the AC110V synchronous power supply is connected with the inner end 19 in the cabinet through a high-voltage transformer, the inner end 19 in the cabinet is connected with a synchronous transformer 24, the synchronous transformer 24 is connected with a three-phase circuit breaker 29, the three-phase circuit breaker 29 is connected with a digital control board 37, and a synchronous signal is provided for the digital control board 37 after being isolated and protected by the synchronous transformer 24 and the three-phase circuit breaker 29;
the AC220V power supply is connected with the inner end 19 in the cabinet through a power transformer, the inner end 19 in the cabinet is connected with an isolation transformer 25, the isolation transformer 25 is connected with a two-phase miniature circuit breaker A27, the two-phase miniature circuit breaker A27 is connected with a fuse 30, and the fuse 30 is respectively connected with an isolation transmitter 26, a relay protection loop 31, a socket 36, a relay control loop 38 and meters 3, 4 and 5;
the AC220V power supply is connected with the inner end 19 in the cabinet through a power transformer, the inner end 19 in the cabinet is connected with an isolation transformer 25, the isolation transformer 25 is connected with a two-phase miniature circuit breaker B28, the two-phase miniature circuit breaker B28 is connected with a fuse 30, the fuse 30 is connected with a 24V power module 34, the 24V power module 34 is connected with a front cabinet terminal 32, and the front cabinet terminal 32 is respectively connected with an alarm buzzer 6, indicator lamps 7 and 8, buttons 10-16, a touch screen 9, a switch 33, a PLC35 and a digital control board 37;
the rectifier connects all analog quantity signals into the inner end 19 in the cabinet, the inner end 19 in the cabinet is connected with the isolation transmitter 26, the isolation transmitter 26 is respectively connected with the meters 3, 4, 5 and the PLC35, and the isolation transmitter 26 transmits the isolated and protected analog quantity signals into the meters 3, 4, 5 and the PLC 35;
the rectifier is connected with all switching value signals of the rectifier into the inner terminal 19 in the cabinet, the inner terminal 19 in the cabinet is connected with the relay protection circuit 31, the relay protection circuit 31 is connected with the PLC35, and the relay protection circuit 31 transmits the isolated switching value signals to the PLC 35;
the PLC35 is connected with a digital control board 37; the PLC35 outputs trigger pulses to adjust the output current of the rectifier by controlling the digital control board 37, the PLC35 is in bidirectional connection with the switch 33, the switch 33 is in bidirectional connection with the touch screen 9, the PLC35 is in bidirectional connection with the relay control loop 38, and the relay control loop 38 is respectively connected with the alarm buzzer 6, the indicator lamps 7 and 8 and the buttons 10-16.
The PLC35 is in connection communication with the digital control board 37 through a CAN bus or 485 connection communication mode;
PLC35 communicates the data to switch 33 via ethernet;
the touch screen 9 communicates with the PLC35 via ethernet through the switch 33.
The utility model is provided with a digital control board 37, the digital control board 37 carries out PI operation according to the set current (voltage) value and feedback value, calculates the control angle of the optimal trigger pulse of the rectifier, sends trigger pulses corresponding to synchronous reference signals according to the control angle, distributes different phase-shifting pulses to the corresponding thyristors of the rectifier, and completes rectification trigger. The control angle is kept between 5 degrees and 15 degrees, the rectifying efficiency is high, the electric power energy is saved, and the user cost is saved. The steady flow precision is improved to three thousandths from one percent of the original analog board, so that the stability of the rectification output current is ensured, and the smooth production is ensured.
And the PLC35 is used for intensively processing data to generate system control protection, so that the safe operation of the core components of the rectifier is ensured. The problems of information loss, poor cooperative control and the like existing in the mutual cooperation of equipment in the rectifier are reduced.
Meanwhile, the touch screen 9 is arranged, so that visual centralized monitoring can be performed, each fault signal has a clear text prompt, and the graphic indication of the corresponding position is convenient for the on-site staff to remove the fault in time at the first time. And all alarm and control information is stored and recorded in the automatic generation history database, so that the data is conveniently collected and fault analysis is performed. The interface is convenient and concise, the on-site staff does not need too much professional knowledge, and the on-site staff can be qualified for daily operation through simple training. The integration level is high, and the operation is visual and convenient.
Ethernet and CAN bus communication interfaces are reserved in the cabinet, so that the universality is high, communication with an upper computer and other external equipment is facilitated, networking is realized, and the production automation level is high.
The utility model is simultaneously provided with the meters 3, 4 and 5, the alarm buzzer 6, the indicator lamps 7 and 8 and the buttons 10-16 as standby control, and can complete basic protection and monitoring by manually operating the buttons and monitoring the meters, the alarm buzzer and the indicator lamps when the touch screen 9 suddenly fails, thereby ensuring the normal requirement of production. The double protection of software and hardware is realized, and the smooth production under emergency is ensured.
Claims (4)
1. An electrolytic rectification control cabinet which is characterized in that: including switch board cabinet body (1), cabinet front panel, relay mounting panel (21), cabinet inner (19), the cabinet front panel includes: the device comprises instruments (3, 4, 5), an alarm buzzer (6), indicator lamps (7, 8), a touch screen (9) and buttons (10-16); the relay mounting plate (21) comprises: the intelligent control cabinet comprises a synchronous transformer (24), an isolation transformer (25), an isolation transmitter (26), a two-phase miniature circuit breaker A (27), a two-phase miniature circuit breaker B (28), a three-phase circuit breaker (29), a fuse (30), a relay protection circuit (31), a cabinet front terminal (32), a switch (33), a 24V power supply module (34), a PLC (35), a digital control board (37) and a relay control circuit (38), wherein a relay mounting plate (21) is arranged on a beam on the inner side of a cabinet body (1) of the control cabinet; the left side and the right side of the control cabinet body (1) behind the relay mounting plate (21) are provided with cabinet inner ends (19);
the AC110V synchronous power supply of the control cabinet is provided by a high-voltage transformer, the AC220V power supply is provided by a power transformer on site, and all signals are provided by a rectifier;
the AC110V synchronous power supply is connected with an inner end (19) in the cabinet through a high-voltage transformer, the inner end (19) in the cabinet is connected with a synchronous transformer (24), the synchronous transformer (24) is connected with a three-phase circuit breaker (29), the three-phase circuit breaker (29) is connected with a digital control board (37), and a synchronous signal is provided for the digital control board (37) after being isolated and protected by the synchronous transformer (24) and the three-phase circuit breaker (29);
the AC220V power supply is connected with an inner end (19) in the cabinet through a power transformer, the inner end (19) in the cabinet is connected with an isolation transformer (25), the isolation transformer (25) is connected with a two-phase miniature circuit breaker A (27), the two-phase miniature circuit breaker A (27) is connected with a fuse (30), and the fuse (30) is respectively connected with an isolation transmitter (26), a relay protection loop (31), a socket (36), a relay control loop (38) and meters (3, 4 and 5);
the AC220V power supply is connected with an inner end (19) in the cabinet through a power transformer, the inner end (19) in the cabinet is connected with an isolation transformer (25), the isolation transformer (25) is connected with a two-phase miniature circuit breaker B (28), the two-phase miniature circuit breaker B (28) is connected with a fuse (30), the fuse (30) is connected with a 24V power supply module (34), the 24V power supply module (34) is connected with a front cabinet terminal (32), and the front cabinet terminal (32) is respectively connected with an alarm buzzer (6), indicator lamps (7 and 8), buttons (10-16), a touch screen (9), a switch (33), a PLC (35) and a digital control board (37);
the rectifier is connected with all analog quantity signals of the rectifier into an inner end (19) of the cabinet, the inner end (19) of the cabinet is connected with an isolation transmitter (26), the isolation transmitter (26) is respectively connected with the meters (3, 4 and 5) and the PLC (35), and the isolation transmitter (26) transmits the isolated and protected analog quantity signals to the meters (3, 4 and 5) and the PLC (35);
the rectifier is connected with all switching value signals of the rectifier into an inner terminal (19) in the cabinet, the inner terminal (19) in the cabinet is connected with a relay protection loop (31), the relay protection loop (31) is connected with a PLC (35), and the relay protection loop (31) transmits the isolated switching value signals to the PLC (35);
the PLC (35) is connected with the digital control board (37); the PLC (35) outputs trigger pulses through the control digital control board (37) to adjust the output current of the rectifier, the PLC (35) is in bidirectional connection with the switch (33), the switch (33) is in bidirectional connection with the touch screen (9), the PLC (35) is in bidirectional connection with the relay control loop (38), and the relay control loop (38) is respectively connected with the alarm buzzer (6), the indicator lamps (7, 8) and the buttons (10-16).
2. An electrolytic rectification control cabinet according to claim 1, wherein: the relay mounting plate (21) is divided into four layers, and the first layer is provided with a synchronous transformer (24), an isolation transformer (25) and an isolation transmitter (26); the second layer is provided with a two-phase miniature circuit breaker A (27), a two-phase miniature circuit breaker B (28), a three-phase circuit breaker (29), a fuse (30), a relay protection loop (31) and a cabinet front terminal (32); the third layer is provided with a switch (33), a 24V power module (34), a PLC (35) and a socket (36); the fourth layer is provided with a digital control board (37) and a relay control loop (38).
3. An electrolytic rectification control cabinet according to claim 1, wherein: the cabinet body (1) is front side outward opening door, the back door is the side by side door, front and back door and side door board are equipped with the strengthening rib, the upper and lower side of cupboard back door is equipped with ventilation hole and dust screen, the side respectively is equipped with 2 detachable crossbeams (22, 23) about in the cabinet, the cabinet top is equipped with 4 rings (2), the bottom apron is three-section detachable bottom plate, detachable segmentation bottom plate is adopted to the cabinet bottom, cabinet bottom crossbeam also can dismantle, cabinet body top is equipped with the cooperation of integration white light LED lamp and has travel switch.
4. An electrolytic rectification control cabinet according to claim 1, wherein: the PLC (35) is connected and communicated with the digital control board (37) through a CAN bus or 485 connection communication mode;
the PLC (35) transmits the data to the switch (33) through an Ethernet communication mode;
the touch screen (9) communicates with the PLC (35) via Ethernet via the switch (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320066660.4U CN219123750U (en) | 2023-01-10 | 2023-01-10 | Electrolytic rectification control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320066660.4U CN219123750U (en) | 2023-01-10 | 2023-01-10 | Electrolytic rectification control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219123750U true CN219123750U (en) | 2023-06-02 |
Family
ID=86527097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320066660.4U Active CN219123750U (en) | 2023-01-10 | 2023-01-10 | Electrolytic rectification control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219123750U (en) |
-
2023
- 2023-01-10 CN CN202320066660.4U patent/CN219123750U/en active Active
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